| 초록 |
DMFC has many strong points such as volume energy density, stability of fuel storage and easy transportation. For the reason why methanol is supplied at anode ditectly, it has not only simple system of fuel supply but whole system device like portable small power supply device. Moreover, it is one of the fuel cells which are eco-friendly. The important part of DMFCs is the polymer electrolyte membrane. These days, it is Nafion that is used very universally. Though Nafion has excellent conductivity, it has a little expensive. So, this study shows that it is made by copolymerization of the alpha methyl styrene more oxidatively stable than polystyrene and the acrylonitrile which has mechanical and chemical stability. Afterwards, polymer copolymerized is sulfonated in order to improve the conductivity. In addition, by using the silane coupling agent, it is expected to have higher conductivity than Nafion at the polymer electrolyte membrane |
